Project description:TRAP translational profiling is a method that allows investigators to genetically characterize specific cell types in complex tissues such as mouse brain. Using this technique we obtained RNA-Seq data from actively translating transcripts present in neurons in the prefrontal cortex of adult Crh-IRES-Cre mice (Jackson 012704). This work was supported by the Howard Hughes Medical Institute (N.H) and NIDA UG3-UH3 DA048385
Project description:Early-life stress has been linked to multiple neurodevelopmental and neuropsychiatric deficits. Our previous studies have linked maternal presence/absence from the nest in developing rat pups to changes in prefrontal cortex activity. Furthermore, we have shown that these changes are modulated by serotonergic signaling. Here we test whether changes in prefrontal cortex activity during early-life affect the developing cortex leading to behavioral alterations in the adult. We show that inhibiting the prefrontal cortex of mouse pups leads to cognitive deficits in the adult comparable to those seen following maternal separation. Moreover, we show that activating the prefrontal cortex during maternal separation can prevent these behavioral deficits. To test how maternal separation affects the transcriptional profile of the prefrontal cortex we performed single-nucleus RNA sequencing. Maternal separation lead to differential gene expression almost exclusively in inhibitory neurons. Among others, we found changes in GABAergic and serotonergic pathways in these interneurons. Interestingly, both maternal separation and early-life prefrontal cortex inhibition led to changes in physiological responses in prefrontal activity to GABAergic and serotonergic antagonists that were similar to the responses of more immature brains. Prefrontal activation during maternal separation prevented these changes. These data point to a crucial role of prefrontal cortex activity during early-life in behavioral expression in adulthood
Project description:This study aims to profile transposable element expression in the different cell types of the prefrontal-cortex in human post-mortem samples
Project description:We applied next-generation sequencing to analyse changes in the expression of Dclk1 gene isoforms in the brain in response to several psychoactive drugs with diverse pharmacological mechanisms of action. We used bioinformatics tools to define the range and levels of Dclk1 transcriptional regulation in the mouse nucleus accumbens and prefrontal cortex
Project description:We used MS-based TMT quantitative proteomics in combination with phosphopeptide enrichment method to compare phosphoproteomic profiling in prefrontal cortex of of PS-S and CON offspring rats.
Project description:TRAP translational profiling is a method that allows investigators to genetically characterize specific cell types in complex tissues such as mouse brain. Using this technique we obtained RNA-Seq data from actively translating transcripts present in interneurons in the cerebral cortex of adult Htr3a-Cre (NO176) mice x Rosa26-LSL-EGFP/Rpl10a mice
Project description:TRAP translational profiling is a method that allows investigators to genetically characterize specific cell types in complex tissues such as mouse brain. Using this technique we obtained RNA-Seq data from actively translating transcripts present in neurons in the prefrontal cortex of adult Slc17a6-EGFP/Rpl10a (JX883) mice.